:root {
  --bg: #0f1620;
  --bg-2: #1e3a5f;
  --card: rgba(37, 47, 61, 0.72);
  --card-border: rgba(255,255,255,0.10);
  --text: #f8fafc;
  --muted: #d7dee7;
  --muted-strong: #eef3f8;
  --blue: #0085ca;
  --blue-dark: #00397b;
  --orange: #fc5110;
  --gray: #57585a;
  --green: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0,133,202,0.20), transparent 30%),
    radial-gradient(circle at top right, rgba(252,81,16,0.14), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  filter: blur(60px);
  opacity: 0.28;
  border-radius: 999px;
  pointer-events: none;
}
.orb-a { width: 420px; height: 420px; background: #0085ca; top: -80px; left: -120px; }
.orb-b { width: 420px; height: 420px; background: #fc5110; top: 100px; right: -120px; }
.orb-c { width: 320px; height: 320px; background: #00397b; bottom: 40px; left: 20%; }

.shell {
  position: relative;
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}
.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
.main-content {
  min-width: 0;
}
.sidebar {
  position: sticky;
  top: 24px;
  border-radius: 28px;
  padding: 24px 20px;
}
.sidebar-brand p {
  color: var(--muted);
  line-height: 1.5;
  margin: 10px 0 0;
}
.sidebar-nav {
  display: grid;
  gap: 10px;
  margin: 28px 0;
}
.nav-group {
  display: grid;
  gap: 8px;
}
.nav-group > summary {
  list-style: none;
  cursor: pointer;
}
.nav-group > summary::-webkit-details-marker {
  display: none;
}
.nav-children {
  display: grid;
  gap: 6px;
  padding-left: 14px;
}
.nav-link,
.nav-sublink {
  display: block;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--muted-strong);
  text-decoration: none;
  font-weight: 600;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.05);
}
.nav-link {
  position: relative;
  padding-right: 38px;
}
.nav-group > summary.nav-link::after {
  content: '▾';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 12px;
}
.nav-group:not([open]) > summary.nav-link::after {
  content: '▸';
}
.nav-sublink {
  padding: 10px 12px;
  font-size: 14px;
  background: rgba(255,255,255,0.025);
}
.nav-link.active,
.nav-sublink.active {
  background: linear-gradient(90deg, rgba(0,133,202,0.24), rgba(0,57,123,0.22));
  border-color: rgba(0,133,202,0.28);
  color: #ffffff;
}
.empty-state {
  padding-top: 2px;
}
.nav-placeholder {
  display: block;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 13px;
}
.sidebar-status {
  display: grid;
  gap: 12px;
}
.status-card {
  padding: 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}
.status-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}
.status-card strong {
  color: var(--text);
  font-size: 16px;
}
.glass {
  background: var(--card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  box-shadow: 0 12px 40px rgba(0,0,0,0.28);
}
.hero {
  border-radius: 28px;
  padding: 32px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}
.eyebrow {
  color: #d9e1ea;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  margin-bottom: 10px;
}
h1, h2, h3, h4 { margin: 0; }
h1 { font-size: 42px; font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 18px; font-weight: 700; }
h4 { font-size: 16px; font-weight: 700; }
.subhead, .section-note, .meta-card span, .kpi-card span, .kpi-card small { color: var(--muted); }
.subhead { max-width: 760px; margin-top: 10px; line-height: 1.6; }
.hero-meta { display: grid; grid-template-columns: repeat(2, minmax(140px, 1fr)); gap: 14px; min-width: 320px; }
.meta-card, .kpi-card { border-radius: 22px; padding: 18px 20px; }
.meta-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); }
.meta-card strong { display: block; margin-top: 6px; font-size: 18px; }
.section { margin-top: 28px; }
.section-title-row { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 16px; }
.kpi-grid { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 16px; margin-bottom: 18px; }
.kpi-grid.three-up { grid-template-columns: repeat(3, minmax(220px, 1fr)); }
.kpi-card strong { display: block; margin-top: 8px; font-size: 34px; font-weight: 800; letter-spacing: -0.03em; }
.kpi-card small { display: block; margin-top: 6px; }
.accent-blue { box-shadow: inset 0 1px 0 rgba(0,133,202,0.35), 0 0 0 1px rgba(0,133,202,0.10), 0 16px 50px rgba(0,133,202,0.16); }
.accent-purple { box-shadow: inset 0 1px 0 rgba(0,57,123,0.35), 0 0 0 1px rgba(0,57,123,0.10), 0 16px 50px rgba(0,57,123,0.16); }
.accent-green { box-shadow: inset 0 1px 0 rgba(252,81,16,0.28), 0 0 0 1px rgba(252,81,16,0.10), 0 16px 50px rgba(252,81,16,0.16); }
.card { border-radius: 28px; padding: 24px; }
.card-header, .chart-title-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; color: var(--muted); }
.backlog-subgrid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 16px;
}
.table { width: 100%; border-collapse: collapse; table-layout: fixed; margin-top: 12px; }
.table th, .table td { text-align: center; padding: 14px 10px; border-bottom: 1px solid rgba(255,255,255,0.07); vertical-align: middle; }
.table th { color: var(--muted-strong); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.table td strong { display: block; font-weight: 700; color: var(--text); }
.table td .subtle { display: block; margin-top: 4px; color: var(--muted); }
.metric-pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.pill-hot { background: rgba(252,81,16,0.18); color: #ffd2c1; }
.pill-warm { background: rgba(245,158,11,0.18); color: #fde68a; }
.pill-cool { background: rgba(0,133,202,0.18); color: #bae6fd; }
.pill-neutral { background: rgba(87,88,90,0.30); color: #e5e7eb; }

.pace-charts-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}
.chart-panel {
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 22px;
  padding: 18px;
  background: rgba(255,255,255,0.03);
}
.backlog-subgrid .chart-panel {
  border: 0;
  border-radius: 14px;
  padding: 8px 0 0;
  background: transparent;
}
.chart-title-row span {
  color: var(--muted-strong);
  font-size: 12px;
}
.apex-chart {
  min-height: 320px;
}
.small-chart {
  min-height: 280px;
}

@media (max-width: 980px) {
  .hero, .section-title-row { flex-direction: column; }
  .app-shell, .hero-meta, .kpi-grid, .kpi-grid.three-up, .pace-charts-grid, .backlog-subgrid { grid-template-columns: 1fr; min-width: 0; width: 100%; }
  .sidebar { position: relative; top: 0; }
}